Ondac, Rose Angelie B., Notre Dame of Midsayap College, Quezon Avenue, Poblacion 5, Midsayap, North Cotabato, Philippines
Onyi Yusuf, Hanna, PhD, Department of Educational Foundation and Curriculum, Faculty of Education Ahmadu Bello University, Zaria, Nigeria
Oppong, Emmanuel, Department of Science, Seventh-day Adventist College of Education, Agona – Ashanti, Ghana Department of Integrated Science Education, AAMUSTED, Mampong Campus, Ghana
Oppong, Emmanuel K., Department of Chemistry Education, University of Education, Winneba, Ghana
Oppong, Emmanuel K., Department of Chemistry Education, University of Education, Winneba (UEW), Ghana
Oppong, Emmanuel K., Department of Science Education, University of Education, Winneba, Ghana
Orgwu, Patience Uwelegbewe, Department of Adult Education and Community Development, Faculty of Education, Rivers State University, Port Harcourt, Nigeria
Osadebe, P. U., Dr., Professor of Measurement and Evaluation, Delta State University, Abraka, Nigeria
Osadebe, Patrick U., Phd, Department of Guidance and Counselling Delta State University Abraka, Nigeria
Osadebe, Patrick U., Professor, Department of Guidance and Counselling (Measurement and Evaluation Unit), Delta State University, Abraka, Nigeria
Ossai, P. A. U., PhD, Associate Professor of Measurement and Evaluation, Delta State University, Abraka, Nigeria
Ouasri, Ali, DSc, Laboratoire de Recherche Scientifique et Innovation Pédagogique (LReSIV); Centre Régional des Métiers de l’Education et de la Formation, Madinat Al Irfane, B.P. 3210, Rabat, Maroc
Owusu-Darko, Isaac, Department of Mathematics Education, Valley View University, Techiman Campus, P. O. Box 183, Techiman, Ghana
Owusu-Fordjour, Collins, Department of Integrated Science Education, University of Education, Winneba, P.O. Box 25, Winneba, Ghana

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